877-323 Piston Driver: Aluminum is crimped into the unilok grooves of the shaft to prevent unscrewing. Hardened steel lock tite and micro-mechanically locked piston driver interface. never to unscrew.

Suitable for NR83A NR83A2 NR83A3 NR83A3S.

Compatible with: Hitachi: NV65AC Coil Pallet Nailer, NV50A1 Light-Duty Coil Utility Nailer, NV50AP2 Full Round Head, Coil, Wire Collation Pasti-Tacker Plus, NV65AA Nailer.

Packing List:
1)877-323 Piston Driver;
2)877-334 Aftermarket Gasket (A);
3)877-325 Aftermarket Gasket (B);
4)877-852 Aftermarket Gasket (C);
5)877-854 Aftermarket Gasket (D);
6)877-329 Aftermarket Gasket (E);
7)878-421 Aftermarket Ribbon Spring Set ;
8)878-303 Piston Bumper.